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<?php
require_once __DIR__ . '/I18nFileInterface.php';
class I18nFile implements I18nFileInterface{
private $i18nPath;
public function __construct() {
$this->i18nPath = __DIR__ . '/../../app/i18n';
}
public function load() {
$i18n = array();
$dirs = new DirectoryIterator($this->i18nPath);
foreach ($dirs as $dir) {
if ($dir->isDot()) {
continue;
}
$files = new DirectoryIterator($dir->getPathname());
foreach ($files as $file) {
if (!$file->isFile()) {
continue;
}
$i18n[$dir->getFilename()][$file->getFilename()] = $this->flatten(include $file->getPathname(), $file->getBasename('.php'));
}
}
return $i18n;
}
public function dump(array $i18n) {
foreach ($i18n as $language => $file) {
$dir = $this->i18nPath . DIRECTORY_SEPARATOR . $language;
if (!file_exists($dir)) {
mkdir($dir);
}
foreach ($file as $name => $content) {
$filename = $dir . DIRECTORY_SEPARATOR . $name;
file_put_contents($filename, $this->format($content));
}
}
}
/**
* Flatten an array of translation
*
* @param array $translation
* @param string $prefix
* @return array
*/
private function flatten($translation, $prefix = '') {
$a = array();
if ('' !== $prefix) {
$prefix .= '.';
}
foreach ($translation as $key => $value) {
if (is_array($value)) {
$a += $this->flatten($value, $prefix . $key);
} else {
$a[$prefix . $key] = $value;
}
}
return $a;
}
/**
* Unflatten an array of translation
*
* The first key is dropped since it represents the filename and we have
* no use of it.
*
* @param array $translation
* @return array
*/
private function unflatten($translation) {
$a = array();
ksort($translation, SORT_NATURAL | SORT_FLAG_CASE);
foreach ($translation as $compoundKey => $value) {
$keys = explode('.', $compoundKey);
array_shift($keys);
eval("\$a['" . implode("']['", $keys) . "'] = '" . addcslashes($value, "'") . "';");
}
return $a;
}
/**
* Format an array of translation
*
* It takes an array of translation and format it to be dumped in a
* translation file. The array is first converted to a string then some
* formatting regexes are applied to match the original content.
*
* @param array $translation
* @return string
*/
private function format($translation) {
$translation = var_export($this->unflatten($translation), true);
$patterns = array(
'/array \(/',
'/=>\s*array/',
'/(\w) {2}/',
'/ {2}/',
'/ -> todo\',/',
);
$replacements = array(
'array(',
'=> array',
'$1 ',
"\t", // Double quoting is mandatory to have a tab instead of the \t string
"',\t// TODO - Translation", // Double quoting is mandatory to have a tab instead of the \t string
);
$translation = preg_replace($patterns, $replacements, $translation);
// Double quoting is mandatory to have new lines instead of \n strings
return sprintf("<?php\n\nreturn %s;\n", $translation);
}
}
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